🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.41 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 330.6

Radius: 8.2

Gravity: 4.92 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 0.67 AU - 0.95 AU

Year: 478 Days

Day: 12 Hours

Environment

Temp: -141 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 69,760,691 km

• M1: 102,026 km (0.078 R)
• M2: 602,431 km (0.11 R)
• M3: 887,415 km (0.119 R)
• M4: 1,292,226 km (0.067 R)
• M5: 2,116,211 km (0.098 R)
• M6: 2,876,169 km (0.117 R)
• M7: 3,758,048 km (0.073 R)
• M8: 4,274,909 km (0.076 R)
• M9: 4,710,388 km (0.042 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 702.7

Radius: 8.5

Gravity: 9.73 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 0.97 AU - 0.99 AU

Year: 636 Days

Day: 9.7 Hours

Environment

Temp: -154 °C

Axial Tilt: 5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 69,760,691 km

• M1: 105,766 km (0.097 R)
• M2: 404,363 km (0.059 R)
• M3: 780,003 km (0.077 R)
• M4: 1,162,076 km (0.1 R)
• M5: 1,573,321 km (0.118 R)
• M6: 1,882,240 km (0.105 R)
• M7: 2,320,712 km (0.059 R)
• M8: 2,746,318 km (0.115 R)
• M9: 3,657,219 km (0.082 R)
• M10: 4,114,989 km (0.085 R)
• M11: 4,546,279 km (0.06 R)
• M12: 5,127,766 km (0.083 R)
• M13: 5,609,471 km (0.09 R)
• M14: 6,140,394 km (0.049 R)
• M15: 6,478,934 km (0.114 R)
• M16: 7,237,096 km (0.046 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 282.6

Radius: 10.3

Gravity: 2.66 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 0.97 AU - 1.37 AU

Year: 830 Days

Day: 5.7 Hours

Environment

Temp: -160 °C

Axial Tilt: 12.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 69,760,691 km

• M1: 128,505 km (0.102 R)
• M2: 479,461 km (0.046 R)
• M3: 833,111 km (0.099 R)
• M4: 1,349,074 km (0.061 R)
• M5: 1,882,839 km (0.085 R)
• M6: 2,656,559 km (0.114 R)
• M7: 3,565,067 km (0.058 R)
• M8: 3,937,715 km (0.108 R)
• M9: 4,440,214 km (0.097 R)
• M10: 5,066,581 km (0.112 R)
• M11: 5,876,653 km (0.044 R)
• M12: 6,208,910 km (0.053 R)
• M13: 6,750,903 km (0.102 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 678.3

Radius: 9.7

Gravity: 7.21 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 1.14 AU - 1.32 AU

Year: 895 Days

Day: 8.3 Hours

Environment

Temp: -161 °C

Axial Tilt: 12.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 69,760,691 km

• M1: 120,576 km (0.055 R)
• M2: 532,269 km (0.106 R)
• M3: 850,314 km (0.12 R)
• M4: 1,328,878 km (0.102 R)
• M5: 1,631,664 km (0.12 R)
• M6: 2,098,709 km (0.086 R)
• M7: 2,736,444 km (0.028 R)
• M8: 3,127,643 km (0.089 R)
• M9: 3,512,857 km (0.104 R)
• M10: 3,976,162 km (0.076 R)
• M11: 4,412,539 km (0.108 R)
• M12: 5,080,792 km (0.114 R)
• M13: 6,250,199 km (0.102 R)
• M14: 7,046,808 km (0.113 R)
• M15: 7,421,999 km (0.105 R)
• M16: 7,736,603 km (0.102 R)
• M17: 8,444,501 km (0.037 R)
• M18: 9,222,709 km (0.099 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 473.2

Radius: 13.9

Gravity: 2.45 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 1.34 AU - 1.36 AU

Year: 1029 Days

Day: 13.3 Hours

Environment

Temp: -178 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 69,760,691 km

• M1: 174,730 km (0.1 R)
• M2: 904,020 km (0.119 R)
• M3: 1,398,441 km (0.063 R)
• M4: 3,441,200 km (0.084 R)
• M5: 3,933,526 km (0.109 R)
• M6: 5,043,842 km (0.104 R)
• M7: 5,761,014 km (0.09 R)
• M8: 6,248,404 km (0.11 R)
• M9: 6,763,469 km (0.104 R)
• M10: 7,423,495 km (0.056 R)
• M11: 8,610,554 km (0.08 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 638.9

Radius: 12.8

Gravity: 3.9 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 1.84 AU - 2.16 AU

Year: 1855 Days

Day: 14.6 Hours

Environment

Temp: -197 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 69,760,691 km

• M1: 165,605 km (0.114 R)
• M2: 582,684 km (0.114 R)
• M3: 1,213,538 km (0.066 R)
• M4: 1,617,153 km (0.104 R)
• M5: 2,194,601 km (0.108 R)
• M6: 3,431,925 km (0.109 R)
• M7: 3,857,531 km (0.103 R)
• M8: 4,261,295 km (0.06 R)
• M9: 5,047,432 km (0.084 R)
• M10: 6,494,044 km (0.093 R)
• M11: 7,015,093 km (0.041 R)
• M12: 7,424,243 km (0.115 R)
• M13: 8,023,831 km (0.1 R)
• M14: 8,441,359 km (0.089 R)
• M15: 9,748,396 km (0.075 R)
• M16: 11,708,427 km (0.111 R)
• M17: 12,324,920 km (0.059 R)
• M18: 12,882,022 km (0.068 R)
• M19: 13,290,275 km (0.085 R)
• M20: 14,262,063 km (0.114 R)
• M21: 15,144,989 km (0.075 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 856.9

Radius: 8.1

Gravity: 13.06 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 2.18 AU - 3.24 AU

Year: 2927 Days

Day: 9.9 Hours

Environment

Temp: -208 °C

Axial Tilt: 49.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 69,760,691 km

• M1: 101,128 km (0.052 R)
• M2: 365,916 km (0.114 R)
• M3: 694,583 km (0.05 R)
• M4: 1,080,845 km (0.113 R)
• M5: 1,445,265 km (0.038 R)
• M6: 1,767,948 km (0.058 R)
• M7: 3,054,639 km (0.059 R)
• M8: 3,361,763 km (0.096 R)
• M9: 4,059,787 km (0.105 R)
• M10: 5,245,350 km (0.115 R)
• M11: 5,904,179 km (0.113 R)
• M12: 6,796,231 km (0.094 R)
• M13: 8,009,021 km (0.106 R)
• M14: 8,281,738 km (0.028 R)
• M15: 8,560,589 km (0.117 R)
• M16: 9,174,089 km (0.08 R)
• M17: 9,624,529 km (0.093 R)
• M18: 12,735,416 km (0.089 R)
• M19: 13,873,258 km (0.079 R)
• M20: 14,366,781 km (0.117 R)
• M21: 17,012,270 km (0.116 R)
• M22: 17,463,756 km (0.108 R)
• M23: 18,686,868 km (0.055 R)
• M24: 19,289,000 km (0.075 R)
• M25: 20,216,357 km (0.055 R)
• M26: 20,786,774 km (0.054 R)
• M27: 22,495,181 km (0.115 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 326.8

Radius: 10.8

Gravity: 2.8 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 2.21 AU - 3.29 AU

Year: 2992 Days

Day: 6.3 Hours

Environment

Temp: -192 °C

Axial Tilt: 0.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 69,760,691 km

• M1: 135,087 km (0.088 R)
• M2: 663,766 km (0.09 R)
• M3: 1,046,288 km (0.088 R)
• M4: 1,502,262 km (0.115 R)
• M5: 1,915,451 km (0.075 R)
• M6: 2,975,352 km (0.104 R)
• M7: 3,360,118 km (0.077 R)
• M8: 4,470,583 km (0.068 R)
• M9: 4,934,037 km (0.115 R)
• M10: 5,761,612 km (0.081 R)
• M11: 7,372,183 km (0.105 R)
• M12: 7,780,735 km (0.094 R)
• M13: 9,297,508 km (0.045 R)
• M14: 10,778,975 km (0.086 R)
• M15: 12,169,039 km (0.102 R)
• M16: 12,699,363 km (0.093 R)
• M17: 13,675,190 km (0.109 R)
• M18: 14,026,147 km (0.102 R)
• M19: 14,700,384 km (0.109 R)
• M20: 15,728,271 km (0.071 R)
• M21: 16,554,800 km (0.07 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.63 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 803.1

Radius: 3.4

Gravity: 69.47 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 5.13 AU - 8.13 AU

Year: 11199 Days

Day: 24.3 Hours

Environment

Temp: -225 °C

Axial Tilt: 30 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 69,760,691 km

• M1: 42,336 km (0.118 R)
• M2: 188,493 km (0.092 R)
• M3: 776,563 km (0.112 R)
• M4: 1,237,922 km (0.069 R)
• M5: 2,071,631 km (0.103 R)
• M6: 2,397,455 km (0.081 R)
• M7: 3,078,275 km (0.118 R)
• M8: 5,625,030 km (0.094 R)
• M9: 11,572,742 km (0.113 R)
• M10: 17,547,980 km (0.066 R)
• M11: 18,723,370 km (0.071 R)
• M12: 19,950,222 km (0.045 R)
• M13: 25,789,027 km (0.079 R)
• M14: 26,087,625 km (0.103 R)
• M15: 27,408,275 km (0.095 R)
• M16: 32,786,617 km (0.101 R)
• M17: 38,179,471 km (0.067 R)
• M18: 39,614,264 km (0.106 R)
• M19: 40,949,575 km (0.091 R)
• M20: 41,901,915 km (0.092 R)
• M21: 49,903,905 km (0.071 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.05 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 662

Radius: 4

Gravity: 41.38 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 8.18 AU - 9.92 AU

Year: 17860 Days

Day: 18 Hours

Environment

Temp: -220 °C

Axial Tilt: 6.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 69,760,691 km

• M1: 56,997 km (0.079 R)
• M2: 192,532 km (0.109 R)
• M3: 429,795 km (0.11 R)
• M4: 714,031 km (0.071 R)
• M5: 954,434 km (0.112 R)
• M6: 1,714,990 km (0.056 R)
• M7: 1,931,907 km (0.025 R)
• M8: 2,442,784 km (0.099 R)
• M9: 3,064,363 km (0.112 R)
• M10: 3,609,497 km (0.115 R)
• M11: 3,996,956 km (0.089 R)
• M12: 5,214,533 km (0.099 R)
• M13: 5,709,104 km (0.082 R)
• M14: 7,663,301 km (0.071 R)
• M15: 8,151,139 km (0.112 R)
• M16: 8,659,473 km (0.108 R)
• M17: 25,637,933 km (0.111 R)
• M18: 35,209,056 km (0.081 R)
• M19: 46,910,900 km (0.111 R)
• M20: 60,766,805 km (0.115 R)
• M21: 63,084,524 km (0.107 R)
• M22: 67,895,442 km (0.044 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 474 - 14,568 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit